A certain sum of money amounts to Rs. 62,000 in two years and Rs. 76,200 in 4 years. Find the sum invested initially.

S.I for 2 yrs. = 76,200 – 62,000 = Rs. 14,200 ∴ Sum invested = 62,000- 14,200 = Rs. 47,800

- The simple interest received on a sum is 25/36 of the sum. The number of years is equal to the annual rate of interest. What is the annual rate of interest?
- A took a loan of Rs.5410 at simple interest of 15% p.a. and invested the same money in a scheme at simple interest of 25% p.a. Find the profit earned by A at the end of 2 years.
- Sudeep invested 1/8 of a certain sum at 5% p.a. for two years and 3/5 of the sum at 6% p.a. for two years and the remaining at 10% p.a. for two years. If the total interest received is ₹1,674, then the total sum invested is:
- Akshay invested Rs. 840 in two schemes P and Q in the respective ratio of 5:2. Scheme P and Q are offering simple interest at the rate of 10% per annum and 7% per annum, respectively. Find the interest obtained after 2 years from scheme P.
- The difference between the compound interest, compounded annually and simple interest on Rs. ‘P’ at the rate of 20% p.a. for 2 years, is Rs. 150. If Rs. (P + 1500) is invested at the same rate p.a., then find the compound interest, compounded annually earned after 3 years.
- The difference of S.I and C.I on an amount of Rs. 20000 for 2 years is Rs. 162. What is the rate of interest?
- The difference between the compound interest, compounded annually and simple interest on Rs. ‘P’ at the rate of 20% p.a. for 2 years, is Rs. 100. If Rs. (P + 1500) is invested at the same rate p.a., then find the compound interest, compounded annually earned after 3 years.
- A certain sum of money invested at R% p.a. fetches a compound interest (compounded annually) of 1630.5 and simple interest of Rs.1500 at the end of 2 years. Find the value of ‘R’.
- Viraj invested Rs. 3500 at 20% p.a. simple interest for 3 years. After 3 years, he invested the amount received by him at the 20% p.a. compound interest, compounded annually for another 2 years. Find the final amount received by Viraj at the end of 5 years.
- The difference between the compound interest, compounded annually and simple interest on Rs. ‘P’ at the rate of 25% p.a. for 2 years, is Rs. 100. If Rs. (P + 1600) is invested at the same rate p.a., then find the compound interest, compounded annually earned after 3 years.

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